Between Morphic and Hopfian
Calugareanu, Grigore, Pop, Lavinia
Negative clean rings
Călugăreanu, Grigore, Pop, Horia F.
Jacobsons Lemma fails for nil-clean 2 × 2 integral matrices
Călugăreanu, Grigore, Pop, Horia F.
Tripotents: a class of strongly clean elements in rings
Călugăreanu, Grigore